Chemistry, 04.09.2019 19:10 luvme68297
What does the electron sea model for metals suggest? a. valence electrons drift freely around the metal anions b. valence electrons are anchored to specific metal cations c. valence electrons drift freely around the metal cations d. electrons idle around the metal cations e. valence electrons are anchored to specific metal anions
Answers: 3
Chemistry, 22.06.2019 21:40
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.
Answers: 2
Chemistry, 22.06.2019 22:30
Which of the following is true about the speed of light? it depends on the wavelength.
Answers: 3
Chemistry, 22.06.2019 23:00
What is the measured amount of a product obtained from a chemical reaction?
Answers: 1
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